is 2 78130069 - 1
has 23519495 decimal digits
takes 243.804 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27324.482863.0137 %7400007400003.34832.0482 %27.831163.7713 %
Target27597.938164.0000 %5000008500000023.09323.7716 %121.031265.3578 %
Difference-2-73.4553-0.9863 %+240000-84260000-19.7449-1.7234 %-93.2001-1.5865 %

Known prime factors (1 factor, 82.6 bits, 0.00010575% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
7813006974393973316030623796853772582.62147609053894493952
28 × 3 × 7 × 17 × 41 × 104173 × 121967
2016-05-2210417312196715,5000.47570.9593

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2016-05-22TheJudgerManual testing74000074000012582.6213.8871.633%


Trial Factoring results:
57585960616263646566676869707172737475
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2004-03-16AxelFoxv4_computers212620.004
2016-04-05Mark RoseManual testing262264
2010-10-20NoWhereManDell_Inspiron2642650.048
2010-12-30Stephan Welkernorbert2652660.096
2011-01-03usmfunreda03__irene_2662670.191
2011-01-04usmfunreda03__irene_2672680.383
2011-01-08eon_blue_apocalypse8cylinder2682690.765
2011-01-14lindedKA1CWHM-Lib12692701.530
2013-05-23g0bManual testing2702713.061
2014-02-19snme2pm1Manual testing2712726.121
2016-05-12RichD0Manual testing27227312.24


ECM factoring results:
No ECM results for M78130069


Lucas-Lehmer results:
No L-L results for M78130069


PRP results:
No PRP results for M78130069


CERT results:
No CERT results for M78130069


P-1 factor-bounds graph:
B1 = 740000 (P-1 stage 1)
104
105
106
104
105
106
TF factor-bounds graph:
273
272
271
270
269
268
267
266
265
264
262
this exponent TF target: 75
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00